I am looking into buying a nice car at one heck of a deal, however the guy said that the car had a "red tag" he did not know what that meant, he bought it at an auction, and lives in TN, and he said that because of this the car could not be licensed in TN and some other state, but can be in all other states. He said it had never been wrecked or anything like that, and he has no idea as to why this is, and neither does the courthouse, they have no idea what it means? I have tried looking it up, but have found nothing on it, any help will be greatly appreciated.

thank you.